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authorMarek Olšák <[email protected]>2013-05-02 02:38:43 +0200
committerMarek Olšák <[email protected]>2013-05-11 23:45:01 +0200
commit614ee25077b7ffafeb87b22563d01856824fb4bc (patch)
tree7037a0e03cecc66e83e47a202bba7cc15dfa2ec6 /src/mesa/state_tracker
parentd90f04a65ba5bf27e183f5d57a23716fedcc51d7 (diff)
st/mesa: initialize all program constants and UBO limits
Also simplify UBO support checking. NOTE: This is a candidate for the 9.1 branch. Reviewed-by: Brian Paul <[email protected]>
Diffstat (limited to 'src/mesa/state_tracker')
-rw-r--r--src/mesa/state_tracker/st_extensions.c64
1 files changed, 43 insertions, 21 deletions
diff --git a/src/mesa/state_tracker/st_extensions.c b/src/mesa/state_tracker/st_extensions.c
index 6c84a269fce..d32f50a416c 100644
--- a/src/mesa/state_tracker/st_extensions.c
+++ b/src/mesa/state_tracker/st_extensions.c
@@ -70,7 +70,6 @@ void st_init_limits(struct st_context *st)
struct gl_constants *c = &st->ctx->Const;
gl_shader_type sh;
boolean can_ubo = TRUE;
- int max_const_buffers;
c->MaxTextureLevels
= _min(screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_2D_LEVELS),
@@ -162,6 +161,13 @@ void st_init_limits(struct st_context *st)
c->QuadsFollowProvokingVertexConvention = screen->get_param(
screen, PIPE_CAP_QUADS_FOLLOW_PROVOKING_VERTEX_CONVENTION);
+ c->MaxUniformBlockSize =
+ screen->get_shader_param(screen, PIPE_SHADER_FRAGMENT,
+ PIPE_SHADER_CAP_MAX_CONSTS) * 16;
+ if (c->MaxUniformBlockSize < 16384) {
+ can_ubo = FALSE;
+ }
+
for (sh = 0; sh < MESA_SHADER_TYPES; ++sh) {
struct gl_shader_compiler_options *options =
&st->ctx->ShaderCompilerOptions[sh];
@@ -182,17 +188,33 @@ void st_init_limits(struct st_context *st)
continue;
}
- pc->MaxNativeInstructions = screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_INSTRUCTIONS);
- pc->MaxNativeAluInstructions = screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS);
- pc->MaxNativeTexInstructions = screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS);
- pc->MaxNativeTexIndirections = screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS);
- pc->MaxNativeAttribs = screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_INPUTS);
- pc->MaxNativeTemps = screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_TEMPS);
- pc->MaxNativeAddressRegs = screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_ADDRS);
- pc->MaxNativeParameters = screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_CONSTS);
- pc->MaxUniformComponents = 4 * MIN2(pc->MaxNativeParameters, MAX_UNIFORMS);
- /* raise MaxParameters if native support is higher */
- pc->MaxParameters = MAX2(pc->MaxParameters, pc->MaxNativeParameters);
+ pc->MaxInstructions = pc->MaxNativeInstructions =
+ screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_INSTRUCTIONS);
+ pc->MaxAluInstructions = pc->MaxNativeAluInstructions =
+ screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS);
+ pc->MaxTexInstructions = pc->MaxNativeTexInstructions =
+ screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS);
+ pc->MaxTexIndirections = pc->MaxNativeTexIndirections =
+ screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS);
+ pc->MaxAttribs = pc->MaxNativeAttribs =
+ screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_INPUTS);
+ pc->MaxTemps = pc->MaxNativeTemps =
+ screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_TEMPS);
+ pc->MaxAddressRegs = pc->MaxNativeAddressRegs =
+ screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_ADDRS);
+ pc->MaxParameters = pc->MaxNativeParameters =
+ screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_CONSTS);
+
+ pc->MaxUniformComponents = 4 * MIN2(pc->MaxNativeParameters, MAX_UNIFORMS);
+
+ pc->MaxUniformBlocks =
+ screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_CONST_BUFFERS);
+ if (pc->MaxUniformBlocks)
+ pc->MaxUniformBlocks -= 1; /* The first one is for ordinary uniforms. */
+
+ pc->MaxCombinedUniformComponents = (pc->MaxUniformComponents +
+ c->MaxUniformBlockSize / 4 *
+ pc->MaxUniformBlocks);
/* Gallium doesn't really care about local vs. env parameters so use the
* same limits.
@@ -219,15 +241,9 @@ void st_init_limits(struct st_context *st)
options->EmitNoIndirectUniform = !screen->get_shader_param(screen, sh,
PIPE_SHADER_CAP_INDIRECT_CONST_ADDR);
- if (pc->MaxNativeInstructions) {
- if (options->EmitNoIndirectUniform)
+ if (pc->MaxNativeInstructions &&
+ (options->EmitNoIndirectUniform || pc->MaxUniformBlocks < 12)) {
can_ubo = FALSE;
-
- max_const_buffers = screen->get_shader_param(screen, sh,
- PIPE_SHADER_CAP_MAX_CONST_BUFFERS);
- /* we need 13 buffers - 1 constant, 12 UBO */
- if (max_const_buffers < 13)
- can_ubo = FALSE;
}
if (options->EmitNoLoops)
@@ -237,6 +253,8 @@ void st_init_limits(struct st_context *st)
options->LowerClipDistance = true;
}
+ c->VertexProgram.MaxAttribs = MIN2(c->VertexProgram.MaxAttribs, 16);
+
/* PIPE_SHADER_CAP_MAX_INPUTS for the FS specifies the maximum number
* of inputs. It's always 2 colors + N generic inputs. */
c->MaxVarying = screen->get_shader_param(screen, PIPE_SHADER_FRAGMENT,
@@ -267,8 +285,12 @@ void st_init_limits(struct st_context *st)
if (can_ubo) {
st->ctx->Extensions.ARB_uniform_buffer_object = GL_TRUE;
- st->ctx->Const.UniformBufferOffsetAlignment =
+ c->UniformBufferOffsetAlignment =
screen->get_param(screen, PIPE_CAP_CONSTANT_BUFFER_OFFSET_ALIGNMENT);
+ c->MaxCombinedUniformBlocks = c->MaxUniformBufferBindings =
+ c->VertexProgram.MaxUniformBlocks +
+ c->GeometryProgram.MaxUniformBlocks +
+ c->FragmentProgram.MaxUniformBlocks;
}
}